How to create in Powershell Menu insight of Menu - powershell

Question

I came up with a little helpful script to help monitor and control Services on the remote servers:
do {
$srv = Read-Host 'What is your ServerName?'
$srvs = Read-Host 'What is ServiceName?'
$userMenuChoice = Read-Host -Prompt "
`n1. ServiceList
`n2. Service Status.
`n3. Stop Service.
`n4. Start Service.
`n5. Exit
`nPlease Select Operation"
switch($userMenuChoice){
1{Get-Service -ComputerName $srv | select -property name,starttype}
2{gsv -cn $srv -Name "$srvs*" | Out-String}
3{Get-Service -Name "$srvs*" -ComputerName $srv | Stop-Service}
4{Get-Service -Name "$srvs*" -ComputerName $srv | Start-Service}
5{exit}
}
} while ( $userMenuChoice -ne 4 )
Please, help me figure out how I can get prompt to keep the same server and service ( or NOT) and continue use same menu.
Something like: Before getting to MENU $userMenuChoice it will ask if I want to keep the same server Y/N (Y Default) Do you want to keep the same Service Y/N (Y Default)...
Also How I Can clear screen before Proceeding to the next Menu.
Thank you!

Answer 1

This is called Scope.
Variables created in the block can only survive in that iteration of the block.
$A = "Hello"
While(1 -eq 1){
$B = Read-Host 'Type Name?'
"$A $B"
}
$A will forever be Hello because it was made outside the scope of While
$B will change forever because its inside the Scope of While.
(Also because each time you call while you are replacing $B with read-host anyways)
What you want to do is give a option on the ServerName and place a variable outside the scope of while.
$CurrentServer = $Null
$CurrentService = $Null
do {
if(!($CurrentServer) -or $(Read-Host 'Change Server (Y,N)?') -eq "Y"){
$CurrentServer = Read-Host 'What is your ServerName?'
}
if(!($CurrentService) -or $(Read-Host 'Change Service (Y,N)?') -eq "Y"){
$CurrentService = Read-Host 'What is ServiceName?'
}
$userMenuChoice = Read-Host -Prompt #"
1. ServiceList
2. Service Status.
3. Stop Service.
4. Start Service.
5. Exit
Please Select Operation
"#
switch($userMenuChoice){
1{Get-Service -ComputerName $CurrentServer | select -property name,starttype}
2{gsv -cn $CurrentServer -Name "$CurrentService*" | Out-String}
3{Get-Service -Name "$CurrentService*" -ComputerName $CurrentServer | Stop-Service}
4{Get-Service -Name "$CurrentService*" -ComputerName $CurrentServer | Start-Service}
5{exit}
}
} while ( $userMenuChoice -ne 4 )
The line
if(!($CurrentServer) -or $(Read-Host 'Change Server (Y,N)?') -eq "Y"){}
Allows for you to Change server and service if you wanted to But also allows you to skip it if needed.
It is saying if $CurrentServer is empty OR if $CurrentServer has value Ask Change Server, If Change Server is Y then run if

Answer 2

This seems too easy. Put the Read-Host cmdlets outside of the loop.
$srv = Read-Host 'What is your ServerName?'
$srvs = Read-Host 'What is ServiceName?'
do {
$userMenuChoice = Read-Host -Prompt "
`n1. ServiceList
`n2. Service Status.
`n3. Stop Service.
`n4. Start Service.
`n5. Exit
`nPlease Select Operation"
switch($userMenuChoice){
1{Get-Service -ComputerName $srv | select -property name,starttype}
2{gsv -cn $srv -Name "$srvs*" | Out-String}
3{Get-Service -Name "$srvs*" -ComputerName $srv | Stop-Service}
4{Get-Service -Name "$srvs*" -ComputerName $srv | Start-Service}
5{exit}
}
} while ( $userMenuChoice -ne 4 )